From b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b Mon Sep 17 00:00:00 2001
From: priyanka
Date: Wed, 24 Jun 2015 15:03:17 +0530
Subject: initial commit / add all books

---
 2078/CH2/EX2.3/Example2_3.sce | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100755 2078/CH2/EX2.3/Example2_3.sce

(limited to '2078/CH2/EX2.3')

diff --git a/2078/CH2/EX2.3/Example2_3.sce b/2078/CH2/EX2.3/Example2_3.sce
new file mode 100755
index 000000000..2e94cf6d6
--- /dev/null
+++ b/2078/CH2/EX2.3/Example2_3.sce
@@ -0,0 +1,17 @@
+//Exa 2.3
+clc;
+clear;
+close;
+
+disp("For single phase ac system, P1=V*I1*cosd(fi) watts & W1=2*I1^2*R watts");
+disp("Line losses=W1/P1*100=2*I1^2*R*100/V/I1/cosd(fi)");
+disp("For three phase ac system, P2=sqrt(3)*V*I2*cosd(fi) watts & W2=3*I2^2*R watts");
+disp("Line losses=W2/P2*100=3*I2^2*R*100/sqrt(3)/V/I2/cosd(fi)");
+//on equating W1/P1*100=W2/P2*100
+I2BYI1=2*sqrt(3)/3;
+P1=poly(0,'P1');
+//P2=sqrt(3)*V*I1*I2BYI1*cosd(fi)=2*P1
+P2=2*P1;
+Add_load=P2-P1;
+Percent_add_load=coeff(numer(Add_load/P1*100));//%
+disp(Percent_add_load,"Additional load that can be tranmitted by converting sigle to 3-phase line in %");
-- 
cgit